Using CSM to increase sales revenue can involve identifying and pursuing upsell and cross-sell opportunities with customers. Upselling is offering a higher-tier or more advanced version of your product or service, while cross-selling is offering complementary or additional products or services that can enhance value. To use CSM effectively, you need to segment customers based on their potential and readiness for upselling or cross-selling. Additionally, monitor their usage, feedback, and satisfaction levels to spot gaps, needs, or pain points that can be addressed by your offerings. Educate customers on the benefits and features of your upsell or cross-sell options, and how they can help them achieve their goals. Align your proposals with their budget, timeline, and decision-making process. Finally, follow up and close the deal with customers, and ensure a smooth transition and implementation.